I got hold of a Nikko Sterling LRF for a good price off Fleabay. They state a max distance of 1000 yards, I can certainly give them the thumbs up out to 300, and right in to close airgun ranges, the closest I've measured is 4 yards. A very useful bit of kit for helping to develop range estimation skills, take it everywhere, estimate a distance to a landmark and then check with the LRF, helps to improve range estimation much quicker. Also good for in the field for that extra bit of confidence at longer ranges. Well worth the money!